ART FK/IK switch twists limbs

Development Character & Animation
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1

Hi guys,

I’m having a problem with the Rig created via ART :open_mouth:

when I switch between IK and FK it starts twisting my limbs. and that happens for arms and legs.
here’s a couple of pictures to illustrate the problem.

any idea what I could do about that? :confused:

the model needs to be in a pretty extreme pose and I could not pose her properly with IK on, so I pretty much have to pose her in FK first and then switch back to IK, however, as you can see it breaks things.

37190-1.jpg

37191-2.jpg

2

hi guys,

does anybody have a solution for that? unfortunately this problem is completely preventing us from doing animations right now :confused:

3

I found out that the orient constrained has some rotation values baked in that kind of ‘activate’ when I switch IK/FK; but I don’t know how to fix it?
all of the nodes are firmly locked.
I also tried to go all the way back to skeleton placement and then rebuild the rig from there, but to no avail.

any idea what else I could do to fix the rotation problem?

thanks

4

hi i know it’s an old post but in case for others try to apply a euler filter on the rotations curves
its may be just a 360 rotation of the shoulder